Explosion-engine.



V N.s9 o .l PATENTBD AUG.4 19os. 5 99 T. J. E. MOLDON.

EXPLOSION ENGINE.

PPLITON FILED AUG. 3, 1905.

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PATENTE-Di AUG.' 4, 1508.

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/ Attorneys T; J. E. MoLDoN. EXPLOSION ENGINE; A PPLIOATIOH FILED AUG. 3, 1905.

- Np. 895,099.. PATENTBDAUG. 4, 1903..

T. J. B. MOLDON..

EXPLOSION ENGINE. APPLICATION FILED AUG. 3, 1905.

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nuudz l 77102210: E 7270/170 fg/awww@ 'reference symbols indicate corresponding omitted for the sake of ciearness; and Fig. 7

.are connected by conigieetiiig rods i3 to a' l To all hom it 4may concern.:

Be it known that-1, 'iiioiiixs Josnrii ED- WARD Honnox, n iibject of the King of Great Britain, residingr :il: Peterborough, county of Peterborough, in -lie Province of Ontario, Canada., have invented certain new :induiseful Improvements in Ilxi' losioii-Eiigines and I do hereby declare that the following is a. full, clear, and exact description of the invention, such as will enable others skilled in the. art to which it. iippertaius to make aud-use the sinne. Y

My .invention relates to improvements in explosion engines, and it consists inthe constructions, combinations and ai'raiigen ents herein described and claimed. i. i

llie obJeetof my invention is to provide a compact forni of explosion engine adopted to prot nce great power with a. liighfdegree of eiiieieiicy, and free from the defects incident` to the employment of valves in such type of engines, sueh as chattering, listin-tion of tlie valve and its seat under large ranges of teinperature, etc.

In the accoinpenving drawings, forming part of this application and .in which similer part-s in the seversi viewsv--Figure 1 is a side elevation, illustrating one embodiment of my invention; Fig. 2 is e vertical, axiil, sectional View of the construction sliowi inv F ig. l; Fig. 3 isasectionai view, on the line 3 3 of Fig. 2; Fig. 4 is a sectional view on the line 4 4 of Fig. 2; Fig. 5 is a sectional view, on tlie line 5-5' of Fig. 2: Fig. is a sectional view, on the line ti-6 of Fig. 4, with the pistons,

engine shaft, and intermediate connections is a sectional view on the line 7-7 of Fig. 4, with the pistons, engine. shaft, :ind intermediate connections omitted for the sake of olearness. i i

Referring to the drawings, l 'indicates two .similar easings. esc-li of whiclil is provided with :in explosive cylinder 2, puiiip cylinder 3, and a. water jacket l5 for siid cylinders; Suid easings lit-ing provided with iliiiiges 33, for securing them together about iin engine crank shaft tj :ind with pipes 1h for main- :uiining a, circulation of water through the i;iekets 15.

Oppositely disposed diilerentiiil pistons common crank S on said enjgine shaft 6a; each Of seid differential pistons comprising Specification o! Letters Patent.

en engine piston T and a puni i piston S, ie-

UNITED STATES PATENT OFFICE. l THOMAS JOSEPH E1 )\VARI)/.\IOLDON, OF PETERBOROUGR'ONTAI'HO, CANADA.

i EXPLOSION-ENGINE.

' Patented Aug. 4, 1908.

.-, i, Application tiled. August 3, 1995. Serial No. 272,474

for maintaining seid hifureated ents in engagement with the oriuik 6.

The engine Cylinders are provided with any usual form of sparking device 27, and

f with lubricating openings 26 to which a suitfilile. lubricant is supplied by pipes 25. Exhaust ports 29 are provided at the crank-ends of the engine cylinders in posi.

tion to be closed at a soniewhatlater point in the outward travel of the engine )iston 7 than that. :it which the ports 24 are closed by said pistons.

A. pair of open-ended valveless conduitsl 22 zuid Z3 are ciist integral on the Water jacket of each casing in communication, res ieetively, with the explosion cylinder tlirough ports 24 in the explosion -cylinder and with ports l2 in the pump eylinderof said casing.

` The explosion-cylinder eonduit -of each easing is arranged to register with the pumpcylinder conduit of the other easing when said casings are secured together, thereby meintiiining the explosion cylinder of each casing in free communication with the pump cylinder of the other casing. The outer ends of the conduits 22 and 23, when the ciisings have been secured together, are closed b removable plates, as shown especially in Fig. 1. By this construct-ion, Joints between i the conduits 22 and 23 and the casings are elimi l iiiited, and sii-id relatively long conduits will expiiiid and contract uniformly with the casings under the variations of temperature Iduring operation of the engine; thereby obviuting t ie defects occurring in existing engines of this type in which the long conduits ports 24 in the crank end of the richt hand" engine eylini r 2 and ports l2 in tlieouterend of the, left', liiiud pump cylinder 3; es shown especially in Figs. and 7.' ply pipi: 2l, provided with an `inward opening check valve 11, communicates with said conduit 23 for supplying an explosive mixture thereto, in a manner similar to that o f the supply pi e 2O and conduit 22.

.In Fig.,2 of t e drawings, the pistons'are shown in their extreme right hand position. Duiing Athe travel of the pistons to thisI position, the right hand engine piston 7 has made a power stroke under the impulse of the explosive mixture ignited in its cylinder; the righthaiid pump piston has drawn in e charge of explosive mixture through the conduit 22 end su ply pipe 20; the left hiind engine pis-l ton 7 as compressed a charge of explosive, mixture in its c`ylinder"2;` and the left hand pump piston has compressed a charge of exlosive'inixture which was previously drawn into it-s cylinder through the conduit 23 and supply pipe 21. As the pistons approach their extreme left hand osition, the exhaust port 29 of the right han engine cylinder 2 is uncovered by. the piston 7 to ermi't escape of the exhausted gases of coin ustion and a corres ondin4 drop of pressure in said cylinder. pon t e further travel of the pistons toward their extreme left hand position, the ports 24 in the right hand engine cylinder 2 will be"uncovered thereby permitting the charge of the explosive mixture compressed in' the left hand pump cylinder to enter said engine cylinder through the velveless conduit 23 and force, or sweep, the remnants of the exhaust gases through the exhaust port 29. At about the time -the pistons .reach their extreme left httnd vositions, the coniressed 'charge of -explosiveV mixture in the eft hand engine cylinder 2 is ignited and acts on the left hand engine piston 7 to drive the istons through their right hand stroke.

uring such travel of the pistons toward the right, the left hand-pump piston will drew in a; charge of explosive mixture through the conduit 23 and supply pipe 21; the right hand unzp piston will compress the charge of ex osive mixture previously drawn into its cy nder through the conduit 22; and the right hand engine piston will compress the.: ehaige of explosive mixture previously forced into its cylinder through the valveless plying iin explosive mixture to the pump cylinders and discharge pipes for conveying t ie compressed charges of ex ilosive mixture from the pumpA cylinders to t ie engine cylindeis; thereby insuring certainty of operation and eliminating the common defects of chiittering of the valves on their seats and distortion of thefviilves and their seiits under large ranges of temperatures incident to the opera` tion of ex lesive engines.

h Ihevei lustrated and described ,referred and sat-isfactor f construction, hut obviously, changes could e made within the spirit and 'scope of my invention.

y `Inving thus described 'my invention, what I claim is new is:

In an explosive engine, a pair of casings, each casino' comprising an explosive cylinder, a pump cylinder, and a water ticket for said cylinders, a pair of open-ended valveless eouduits cast integral on said water jiieket of each casing and 'coininunieziting, respect ively, with theexplosive cylinder and pump cylin# der of said casing, means for securing said cnsings together with the explosive-cyiinder conduit of each casing registering with the pump-cylinder conduit of the other easing, a closure for the ,outer endsof said conduits, means for supplying an explosive mixture to said conduits, pistons in said several cylinf ders, a crank shaft, :ind connections between said pistons, and crunk shaft, subslfintiiill) as described.

Iii witness whereof I have' hereunto set niy hand in the presence of two witnesses.

'TllOillAS JOSEPH EDWARD MULDUX. 'Witnessesz i Il. T. MiLiiAnn, A. F. Dixox. 

